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  User: 冯星月
  Date: 2022/4/30
  Time: 14:05
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>小菜的计算结果</title>
</head>
<body>

第一个数：<%=request.getParameter("f")%><br>
符号：<%=request.getParameter("symbol")%><br>
第二个数：<%=request.getParameter("s")%><br>
结果：${res};

</body>
</html>
